Boehler Edelstahl Gmbh & Co Kg

Boehler Edelstahl Gmbh

Wikus-saegenfabrik Wilhelm H. Kullmann Gmbh & Co. Kg

Bohler Edelstahl Gmbh

Böhler Edelstahl Gmbh & Co Kg

Devrim Caliskanoglu

Gert Kellezi

Herbert Schweiger

Joerg H Kullmann

Reinhold Ebner

Ingo Siller

Silvia Zinner

Andreas Baernthaler

Gerhard Jesner

Christian Mitterer

Ernst Putzgruber

Kay MEng Fisher

Material and method for the production of material with isotropic, mechanical properties and improved wear resistance and high hardness potential. Method includes producing in a powder metallurgical (PM) method a slug or ingot from a material of ledeburite tool steel alloy, and subjecting one of the slug or ingot or a semi-finished product produced from the slug or ingot to full annealing at a temperature of over 1100&#xb0; C., but at least 10&#xb0; C. below the fusing temperature of the lowest melting structure phase with a duration of over 12 hrs. In this manner, an average carbide phase size of the material is increased by at least 65%, a surface shape of the material is rounded and a matrix is homogenized. Method further includes subsequently processing the material into thermally tempered tools with high wear resistance occurs or into parts to which abrasive stress is applied.

Material with high resistance to wear

A saw blade () includes a tooth supporting body () and a plurality of teeth () being arranged at the tooth supporting body (). Each of the plurality of teeth () includes a tooth tip () including a cutting portion (). The cutting portion () and at least another part of the tooth tip () of the teeth () are made of a steel alloy that has been produced by powder metallurgy and full annealing.

Saw blade including a cutting element made by powder metallurgy

A machine component or part for alternating mechanical stresses up to a temperature of at most 160&#xb0; C. The component or part comprises a thermally quenched and tempered steel alloy which contains carbon, silicon, manganese, chromium, molybdenum and vanadium in certain concentrations, the remainder being iron (Fe) and accompanying elements and contaminants due to smelting. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Steel alloy for machine components

The invention relates to a method for the production of tools for a chip-removing machining of metallic materials and to a tool with improved wear resistance and/or high toughness. The invention further provides an alloyed steel with a chemical composition comprising carbon, silicon, manganese, chromium, molybdenum, tungsten, vanadium, and cobalt as well as aluminum, nitrogen, and iron. The alloyed steel may be used to make tools to a hardness of greater than 66 HRC and increased chip-removing machining performance.

Method for the production of tools made of alloyed steel and tools in particular for the chip-removing machining of metals

Gun barrel for firearms made from a deformed material and method for producing the gun barrel material. The material has a chemical composition in % by weight of: and impurities due to smelting. The material has a hardness of at least 46 to 48 HRC.

Gun barrel of firearms

A cold-forming steel article which comprises an alloy that comprises carbon, manganese, silicon, chromium, molybdenum, vanadium, tungsten and optionally, niobium in certain concentrations, as well as up to about 0.4 wt. % of accompanying elements, remainder iron and contaminants. The article is formed by atomization of a melt and hot isostatic pressing of the resultant powder. The article exhibits a hardness of at least about 60 HRC and a toughness in terms of impact strength of higher than about 50 J. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Cold-forming steel article

A coated metal article such as, e.g., a tool, which article comprises a body part comprising a substantially carbon-free precipitation-hardened iron-cobalt-molybdenum/tungsten-nitrogen alloy and carries a coating. The coating has been applied by a PVD method and/or a CVD method and comprises a substantially single-phase crystalline, cubic face-centered structure. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Tool with a coating

A steel alloy for cutting tools, wherein the alloy comprises C, Si, Mn, Cr, Mo, W, V, Al, P, S and N within the concentration ranges recited in the claims. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

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Bruck/Mur, Austria

Devrim Caliskanoglu